Apparatus for carbonizing coal



Oct. 6, 1931. R. L. RoDGER APPARATUS FOR CARBONIZING COAL Filed Feb. 27, 1922 3 Sheets-Sheet l afar" oct. 6, 1931. 1 R L, ODGERS 1,826,573

APPARATUS FOR CRBONIZINGCOAL Filed Feb. 27, 1922 5 Sheets-Sheet 3 I I duced in a simple,".economical and eliicient siennes LEnieonGEnsor/i c'iiione, :ILLiNoi-s, iissninon,l BY iiissiiiilassieiiivinirrs, flOfCi-innooLiC'LE ooitronsirioii, or oLiiifroii, rumana, A oonroisn'rioii or iiaiiiena APPARATUS Foie canBoNizING COAL Vl`liis invention relatesto the carbonization i or coking of coal consisting ofsolid carbona-ceous material, andits object is to provide a method and appa 1atus whereby a uniicorm product oip high quality may be pro- 'manneiz The invention contemplates subdividing the coal ,being coked into relatively small parts, and immersing these relatively small charges, in a suitable container, in a bath of molten material, such as fused salts. By this means the temperature is runder perfect control, isuniformly applied to the charge, and the heat is transmitted to the charge directly andinan eli'icient and economical manner. Aflieat storing reservoir is provided, equalising 'the heat applied to the charge, at all Il points and'v throughout .the operation.

, The method of coking coal by placing' theA same'V in a heat conductive container ini.- incrsed in a bath of fused-salts is particularlyI if-licacious in the production of low temperature coke. f

In the drawings: y A n Y l l. is a perspectivcview ot a carbonizing' nit partly broken away, y

lig. 2 is a. sectional elevation thereof, Fig. 3 is a sectional elevation thereof on a plane adjacent to that of Fig.l 2,

Fig, L1 is a planrsectional view, and lFig. 5 is an elevation partlyin section on a line at right angles to the line of the section in Figs. 2 andy 3. Y

The method of this invention could be carried out in various forms of apparatus;

l shall, however, describe herein an illustrative forni.

The essential operating parts of the structure selected for illustrative purposes may be seen in Fig. 1, wherein is shown a vat 1,

y vcontaining the molten material comprising the bath. The front and rear sides 2 o'f the vat 1 are provided With opposite yvertical "f slots extending. nearly but. not quite to the -toin'of' the vat.y y .strengthening ribs 8, and with horizontal exterior flanges 9 nearthe top thereof upon ments are the exterior grooves #le (which receive the edges or" the Walls dening the vertical slots in the iront and rear Wall 2 of Athe vat) and theinterior grooves 5 into rWhich the removable ends 6 of they chambers #are slidably fitted. Thus each chamber, for

coahextends almost but not quite yto the bottom, of the tank or vat, opens through the trent and rear sides ofr said tank ,or vat, as v'well as at thc'top. These ,chambers are supported on the saddles 7 resting on the bot- They are provided .with

wwhichy rest the plates l0, which cover the liquid filled compartments of tlievat, between the chambers intowliich the coal is placed.

,'lhe chambers 3 flare sideways Aat the top .as shown at 11 and are provided with cross members 12 at :frequent intervals. Between v`the lmembers 12the sectionalcovers 1?). .tit

Wit'ha Wedge lit. The Whole exterior of the structure, except-the ends of the chambers, islsiiitably,insulated by' insulation 14,-shown 'in Figs. 4 andro. Outlet-'111.r lead from the chambers to a gas manifold 16. In operation replaced, and the coal cohed. Atthe end oi' 'thecokingoperation by removing tlieends (i of the chambers the coke may be pushed out laterally by a'plunger, ory otherv mechanism Well known in the art, after which the ends ,6' are replaced anda new charge provided.

The coking chambers 3 are in this instance rEhe lother dimensions may bevaried almost at will. I

haver found that With a Width ofeiglit inches efficient low temperature coking is permitted. The Whole structure is mounted ona lire arch yWhose `construction will nowj be described. f i

, Y The lire chamber is shown at 20.f It eX-' .tends along an entire unit which contains :many coking chambers, from the tire chain- Vber the gases pass :rearwardly through lues 21, then forwardly through fliies 22, up

through lues 23, and throughrthe intersubstantially eight inches Wide, egeight i lvinches betweenl the heated Walls.

Il: i

stices of brick VVivvork which: surrounds tank or; vat adapted to contain salts,

the firejboxes 20, andfinally tothestack.

By vthisr arrangement eiiicient heating forY theftanl: 1 visV provided] Other arrange-f ments fofl course could be substitutedg VGras `0r liquidbfuel may be used, and the te1n-. perature' controlled by devices Well-kno'vvnin vthe art. i ,l f.' i i A F rom the construction *shown it Willbe ap-j parentjqthatfivliile'f'the coal is dumped orV dropped vertically intoj the coking chambers,

@it can be remvedtli-erefrom horizontally.v

f Thus at the end ofthe coking operation'the en ds 6 of the coking chambers are raised, and by any suitable plungermechanism (or by hand plunging) the cokermay vbe pushed :horizontally out of the chamber toy a suitable y -Y dumping pit located V alongside f the unit-.- Y

.Having described they apparatus, I 'shall cite as an illustrative embodiment ofthe in-V .v entio'n the application to a container confp'ar'tof a sodiumfchloride'. This fuses and maybe 'inaintainedxas a liquid at approximately932 F., and may'be'lieatedfrom that f jpoint'over a considerablerangeof tempera-V ture, and forms an excellent illustrative fused Y fized if desired, byfa circulatory action in it and the transfer of thefheat to the coal is ef-VV fectedby direct conduction.vr Y

a plurality of chambers opening .through the sides and jat the ltop ofsaid vat, said cham-V ',bers being ysup} o`rted above thebottom of said vat whereby the fused salt may act upon the bottom ofsaid chambers, removable closures forthe top andrsidesoffsaid,chambers, whereby coal may be dropped'intosaid chambers and coke laterally pushed out therefrom, and means for heatind thevatrVH `v I In witness" whereof-3 my name BlOHARD! LEE RODGEBS "mediumfor the ltransferof heat to the coal, wuniformly and directlythrough the heat cone yductive'vvalls lof the coal chambers. In practice the temperature of the bath may be equal# vThe liquidV molten material, provides a Y reservoir1of heat from Whichtheheat flows ,uniformly'fto the entire surface'of Ythecoal v4chambers with Whichfit contacts. This uniformity of' application of the heatI regard'` as `ofglreat importance. YFurthermore variations .intheheat produced in the lire boX,

are effectively eliminatedlby the time the heat istransferredtothe coal. In other'words Y heat is' delivered to a'heatreser'voir of large capacity, and Will bedelivered therefrom at Y 1 substantially uniform rate in spite of conk rsd'erable fluctuation'of temperatureJ in the 56 4ire boX.g-` r Y .Y i Y Y The method Aapparatus herein'y del scribedis'A adapted for use with varicusforms of coal. including solid carbonaceousfprod- Y Y n, ucts, such as lignite; and similarsolid mineral Y-substances?adapted"to be treated by heat to drive off volatile .material and 'leaving a caradaptl-fAppa-ratus for carbonizing coal com-V prisinga liquid bath, means' 'for heating said f bathg-achamber inrsaidrbath openingabove-V said bath and. means permitting discharging 1- the contents of said chamber laterally; there# Y In :apparatus I hereunto subscribe` thislth dayV of February, Y

thek classi described, a 'i l 

